(of a bird's feet) having two toes pointing forward and two backward.
- ‘Their legs are strong, and feathered in many species; they have zygodactyl raptorial feet.’
- ‘All the small zygodactyl or semizygodactyl forms, generally from Eocene deposits, are jumbled together in the family Zygodactylidae.’
- ‘Their talons are sharp and hooked and their feet are zygodactyl with a reversible fourth toe.’
- ‘Paleogene fossils also document diverse extinct branches of the neornithine tree, ranging from large pseudotoothed seabirds to giant flightless land birds to small zygodactyl perching birds.’
A bird with zygodactyl feet.
We take a look at several popular, though confusing, punctuation marks.